There's nothing irresponsible about smoking marijuana or drinking beer or smoking a cigarette or using dip or snorting coke.
There are millions of successful people in the world that recreationally used drugs.
This notion that we need laws that punish everybody because some might become crack head is assinine.
Marijuana in particular has no adverse side effects, you can't overdose, it doesn't make the user violent.
I know peole who've overdosed. I've seen the bad side of drugs and alcohol for that matter.
I've never seen marijuana destroy lives.
Remember the 1920's. Prohibition creates more crime and makes everything worse.